抗射频非规则传播影响的三维无线传感器网络无人飞行器辅助定位方法

项目名称： 抗射频非规则传播影响的三维无线传感器网络无人飞行器辅助定位方法

项目编号： No.61303211

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 自动化技术、计算机技术

项目作者： 徐玉

作者单位： 温州大学

项目金额： 23万元

中文摘要： 位置是上下文感知无线传感器网络应用中的基本要素之一。在三维环境中，RF信号的非规则传播严重影响了RSS测距的精度，给节点定位带来巨大挑战。本项目以具备高精度实时自定位能力与自主飞行能力的无人飞行器为移动信标节点，利用其移动性在未知节点的RSS信号中构造不受RF非规则传播影响的RSS干涉频率特征与极大值特征，以此为基础提出相应的定位算法与信标节点移动路径，设计切实可行的定位协议与原型系统，并在真实环境中测试与验证算法的性能。本项目的主要创新之处在于通过革新RSS的利用方式有效解决了RF信号非规则传播对定位影响的问题,使得算法在真实环境中的定位精度显著优于现有基于RSS的定位算法，接近基于超宽带信号测距的高成本定位算法。项目采用理论分析、仿真研究、实验验证相结合的技术路线，将在定位理论与算法、信标节点移动路径研究上有所创新，为三维无线传感器网络的定位提供新思路与有效实现手段。

中文关键词： 无线传感器网络；移动信标辅助定位；自主飞行信标节点；无人飞行器；

英文摘要： Location is one of the most essential contexts for many wireless sensor network (WSN) applications. The radio frequency (RF) irregularity in three-dimensional (3D) environment seriously reduces the accuracy of RSS ranging, bringing a great challenge to WSN localization. The present project adopts an unmanned aerial vehicle (UAV) with abilities of high accuracy, real time positioning and autonomous flying as the mobile beacon node, and uses its mobility to construct the RSS interference frequency feature and the RSS maxima feature, which are unaffected by RF irregularity. Based on these location features the localization algorithms and corresponding paths for mobile beacon node would be proposed. Subsequently, the practical localization protocols and prototype system will be designed and the performance of the proposed algorithms will be tested and validated in the real environment. The major innovation of this project is the avoidance of RF irregularity in RSS based localization, thus the expected accuracy of the proposed algorithms can dramatically exceed the accuracy of existing RSS based algorithms, and will approach the accuracy of costly localization algorithms based on ultra wideband ranging. The project takes the comprehensive technical approache that combines theoretical analysis, simulation study and ex

英文关键词： wireless sensor network；mobile beacon assisted localization；Aerial beacon；unmanned aerial vehicle；